Hello everyone. I am a beginning photographer, but I also do videos. I am interested in purchasing the beauty dish here:[ame]http://www.amazon.com/Comet-40-SW-White-Beauty-Reflector/dp/B000EAIC10/ref=pd_bbs_sr_1/102-0063706-7866509?ie=UTF8&s=electronics&qid=1178910639&sr=8-1[/ame] But what would I need for a light? I read somewhere that this was compatible with flash heads. Does that mean that it is not a continuous light?